C#´ò°üSQLÊý¾Ý¿â²¿Êð°²×°
²Î¿¼¡¶ASP.NETÓëSQLÒ»Æð´ò°ü²¿Êð°²×°¡·
£¬ÕâÆªÎÄÕÂÊÇÕë¶ÔVB.NETÓëSQL Ò»Æð´ò°üµÄ,µ«ÊÇÎÒʹÓõÄÊÇC#,µ±È»Ö»ÒªÐÞ¸ÄÒ»ÏÂÖ÷Òª°²×°Àà¿â¾ÍÐÐÁË!C#µÄÀà¿â´úÂëÈçÏÂ:DBCustomAction.cs
using System;
using System.Collections;
using System.Data.SqlClient;
using System.ComponentModel;
using System.Configuration.Install;
using System.Diagnostics;
using System.IO;
using System.Xml;
using System.Reflection;
namespace PMS
{
/// <summary>
/// DBCustomAction µÄժҪ˵Ã÷¡£
/// </summary>
[RunInstaller(true)]
public class DBCustomAction : System.Configuration.Install.Installer
{
/// <summary>
/// ±ØÐèµÄÉè¼ÆÆ÷±äÁ¿¡£
/// </summary>
private System.ComponentModel.Container components = null;
public DBCustomAction()
{
// ¸Ãµ÷ÓÃÊÇÉè¼ÆÆ÷Ëù±ØÐèµÄ¡£
InitializeComponent();
// TODO: ÔÚ InitializeComponent µ÷ÓúóÌí¼ÓÈκγõʼ»¯
}
private void ExecuteSql(string conn,string DatabaseName,string Sql)
{
SqlConnection mySqlConnection=new SqlConnection(conn);
SqlCommand Command=new SqlCommand(Sql, mySqlConnection);
mySqlConnection.Open();
mySqlConnection.ChangeDatabase(DatabaseName);
try
{
Command.ExecuteNonQuery();
}
finally
{
//close Connection
mySqlConnection.Close();
}
}
/// <summary>
/// ÇåÀíËùÓÐÕýÔÚʹÓõÄ×ÊÔ´¡£
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
Ïà¹ØÎĵµ£º
if exists(select * from sysobjects where name='atzk')--ÅжÏÊÇ·ñ´æÔڴ˱í
drop table atzk
go
create table atzk
(
nid int identity(1,1) primary key,--nid×Ô¶¯±àºÅ£¬²¢ÉèΪÖ÷¼ü¡£
mytitle varchar(50) not null,--֪ͨµÄ±êÌâ¡£
mycontents varchar(200)--·¢²¼Í¨ÖªµÄÄÚÈÝ¡£
) ......
֮ǰûÔõôÑо¿¹ýMySQLµÄÈÝÁ¿£¬ÓÉÓÚÏîÄ¿ÐèÒª£¬ÐèÒªÒ»¸öÃâ·ÑµÄ¿ÉÒÔÖ§³ÖǧÍòÌõÊý¾Ý¼¶ÒÔÉϵÄÊý¾Ý¿â£¬²é¿´ÏÂmysqlµÄÎĵµ£¬·¢ÏÂmysql»¹ÊǺÜÇ¿´óµÄ£¬¼Ç¼Ï£¬ºÇºÇ¡£ÔÎÄÈçÏ£º
MySQL 3.22ÏÞÖÆµÄ±í´óСΪ4GB¡£ÓÉÓÚÔÚMySQL 3.23ÖÐʹÓÃÁËMyISAM´æ´¢ÒýÇæ£¬×î´ó±í³ß´çÔö¼Óµ½ÁË65536TB£¨2567 –1×Ö½Ú£©¡£ÓÉÓÚÔÊÐíµÄ±í³ß´ç¸ü´ ......
±¾ÎĽ«½éÉÜC#ÏîÄ¿´ò°üÒÔ¼°×Ô¶¯°²×°SQL SeverÊý¾Ý¿â£¬°üÀ¨´´½¨²¿ÊðÏîÄ¿¡¢½«Ö÷³ÌÐòÏîÄ¿µÄÊä³öÌí¼Óµ½²¿ÊðÏîÄ¿ÖС¢´´½¨°²×°³ÌÐòÀà¡¢´´½¨×Ô¶¨Òå°²×°¶Ô»°¿òµÈµÈ¡£
’power by: landlordh
’for 2000,xp,2003
Module uninstall
Sub Main ......
sqlÓï¾ä²éѯ½á¹ûºÏ²¢union ºÍunion allÓ÷¨
--ºÏ²¢Öظ´ÐÐ
select * from A
union
select * from B
--²»ºÏ²¢Öظ´ÐÐ
select * from A
union all
select * from B
°´Ä³¸ö×Ö¶ÎÅÅÐò
--ºÏ²¢Öظ´ÐÐ
select *
from (
select * from A
union
select * from B) AS T
order by ×Ö¶ÎÃû
--²»ºÏ²¢Öظ´ÐÐ
sel ......
1)
¼Ù¶¨ÓÐÒ»¸öÓû§±í£¬±íÖаüº¬×ֶΣº
userid
(int)
¡¢
username
(varchar)
¡¢
password(varchar)
¡¢µÈ£¬
¸Ã±íÐèÒªÉèÖÃÖ÷¼ü£¬ÒÔÏÂ˵·¨ÕýÈ·µÄÊÇ£¨£©¡££¨Ñ¡ÔñÁ½Ï
a)
Èç¹û²»ÄÜÓÐÍ¬Ê±ÖØ¸´µÄ
username
ºÍ
password
£¬ÄÇô
username
ºÍ
password
¿ÉÒÔ×éºÏÔÚÒ»Æð×÷ΪÖ÷¼ü¡£
  ......